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发明名称
摘要
申请公布号
JPS474762(U)
申请公布日期
1972.09.12
申请号
JP19710005651U
申请日期
1971.02.05
申请人
发明人
分类号
F24F7/06;A24F27/00;F24F9/00;(IPC1-7):A24F27/00
主分类号
F24F7/06
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代理人
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